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27-10-2021
Medicine

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the two atria hold the blood that circulates away from the heart

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whitevanessa910 whitevanessa910

27-10-2021

Answer:

The heart has four one-way valves, which open and close with each heartbeat. The tricuspid valve and the mitral valve are located between the atria and allow the blood to flow from the atria to the ventricles.

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